74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <imageio/ImageDiffer.h>
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#include <image/ColorTransform.h>
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#include <image/ImageOps.h>
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#include <imageio/ImageDecoder.h>
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#include <imageio/ImageEncoder.h>
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#include <utils/Panic.h>
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#include <fstream>
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namespace image {
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// TODO: Remove special treatment of 1-channel data.
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void updateOrCompare(LinearImage limgResult, const utils::Path& fnameGolden,
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ComparisonMode mode, float epsilon) {
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if (mode == ComparisonMode::SKIP) {
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return;
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}
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// Regenerate the PNG file at the given path.
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if (mode == ComparisonMode::UPDATE) {
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std::ofstream out(fnameGolden, std::ios::binary | std::ios::trunc);
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auto format = ImageEncoder::Format::PNG_LINEAR;
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if (fnameGolden.getExtension() == "rgbm") {
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format = ImageEncoder::Format::RGBM;
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}
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if (limgResult.getChannels() != 1) {
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ImageEncoder::encode(out, format, limgResult, "", fnameGolden);
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} else {
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auto limg2 = combineChannels({limgResult, limgResult, limgResult});
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ImageEncoder::encode(out, format, limg2, "", fnameGolden);
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}
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return;
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}
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// Load the PNG file at the given path.
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std::ifstream in(fnameGolden, std::ios::binary);
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FILAMENT_CHECK_PRECONDITION(in) << "Unable to open: " << fnameGolden.c_str();
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LinearImage limgGolden = ImageDecoder::decode(in, fnameGolden);
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// Convert 4-channel RGBM into proper RGB.
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if (fnameGolden.getExtension() == "rgbm" && limgGolden.getChannels() == 4) {
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limgGolden = toLinearFromRGBM(
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reinterpret_cast< filament::math::float4 const*>(limgGolden.getPixelRef()),
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limgGolden.getWidth(), limgGolden.getHeight());
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}
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// Expand the result image from L to RGB.
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if (limgResult.getChannels() == 1) {
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limgResult = combineChannels({limgResult, limgResult, limgResult});
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}
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// Perform a simple comparison of the two images.
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FILAMENT_CHECK_PRECONDITION(compare(limgResult, limgGolden, epsilon) == 0) << "Image mismatch.";
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}
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}
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